[CPU] The Intel LGA1150 Pentium G3258 & Devil Canyon "24/7" Overclock Thread

[twentytwoeighty]

So from what I see all Asus H81 models can OC Pentium AE and i5/i7 K right?

 

[royfrosty]

So from what I see all Asus H81 models can OC Pentium AE and i5/i7 K right?

Not just Asus H81 bro.

there are other brands that supports OC.

Such as the ASRock H81M DGS or HDS. MSI H81 E35. Gigabyte H81M also.

 

[MacClipper]

Summary
So far, personally tested these...


H81

Asus
Click!

Asrock
Click!



B85

Asrock
Click!




HTH

 

[MacClipper]

xvid4PSP x264 Transcoding

 

[MacClipper]

Seems similar findings...

ASRock H81M-ITX
AnandTech Forums - What motherboards have Non-Z overclocking enabled for Pentium 3258?

incidentally, voltage doesn't seem to be limited on this motherboard

 

[royfrosty]

Intel XTU



Done a 1 hour testing and went to sleep, morning woke up and still found the setup still running!

4.7ghz 1.366v. Still going strong!

 

[MacClipper]

Intel XTU
...

Done a 1 hour testing and went to sleep, morning woke up and still found the setup still running!

4.7ghz 1.366v. Still going strong!

btw, do note that the inappropriately named XTU stress test is not really meaningful unlike the XTU benchmark cos... the benchmark is actually more stressful than the stress tests as others have found out too.

Are you using XTU Stability test or the benchmark?

The stability test isn't all that stressfu compared to the benchmark. I had the same problem before where I would pass Intel XTU stability test or Aida 64 stability test all day, but Prime95 blend would crash.

imo, better to have invested that hour in P95 instead.

 

[royfrosty]

btw, do note that the inappropriately named XTU stress test is not really meaningful unlike the XTU benchmark cos... the benchmark is actually more stressful than the stress tests as others have found out too.



http://www.overclock.net/t/1411077/haswell-overclocking-guide-with-statistics/1320_20#post_20702774

imo, better to have invested that hour in P95 instead.

Ah I see thanks.

 

[MacClipper]

Heheh, that you had invested more than an hour in running the XTU stress test shows Intel has done you a disfavour by their naming deception. A stress test which is actually less stressful than the benchmark... lol

As they say... Lies, damned lies, and statistics - Wiki

btw, the worst culprits are those who purposefully, yes knowingly tout such statistics to showcase their o'cing capabilities eg. using a mere HyperPi 8M to show off their CPU overclock, 4.8GHz wor...

Old birds would know better that HyperPi is more an indicator of IMC/RAM stability than CPU stability and at the least, you should run the longer & more stressful 32M as well. But unfortunately, lesser informed forumers might be taken in by the devious scheme.

Hmm, think I had better not get started on those show offs who use SuperPi 1M....

 

[MacClipper]

Asrock Z87 Killer
As said previously, better to pair with a higher end model for i7 chips. Even if it is only just for the more detailed attention paid to the BIOS programming... yes, this a proper Intel sanctioned o'cing Z model.





I simply love it when they get the vcore/vcache voltage programming properly sorted out in higher end models.

 

[MacClipper]

4.4GHz@1.245V BIOS
Here's where the stock Intel HSF on the Asus H81M-A starts getting out of steam in our local hot spell...





Max load temps reaching high eighties liao but still no thermal throttling yet

 

[royfrosty]

Intel XTU Benchies

 

[MacClipper]

Nice clocks and temps! Your 2nd chip?

Not really sure why but the final score seems rather low, 329@4.7 vs 330@4.5 as seen in post #150. Maybe can run RAM higher or tighten the timings...

 

[royfrosty]

Nice clocks and temps! Your 2nd chip?

Not really sure why but the final score seems rather low, 329@4.7 vs 330@4.5 as seen in post #150. Maybe can run RAM higher or tighten the timings...

Yeah will try again. Most probably is ram issue will try again tomorrow morning.

 

[MacClipper]

Really looks like just the 2 of us are actively playing with the PenK in this thread... lol

Here's my little contribution again.


Clock vs Vcore vs XTU Score Scaling

4.5


4.6


4.7



Note that all the above are tested for XTU Bench stability only and are not finalised settings for 24/7 except for the 4.5GHz which seems reasonably stable enough for dual pass x264 transcoding over many multiple sessions.






HTH

 

[twentytwoeighty]

4.4GHz@1.245V BIOS
Here's where the stock Intel HSF on the Asus H81M-A starts getting out of steam in our local hot spell...





Max load temps reaching high eighties liao but still no thermal throttling yet

You only adjusted turbo multipiers right? EIST still working?

 

[royfrosty]

Delided + Zalman (iron man core) + CLU thermal paste

Total temp reduction of 16deg! . A good drop from Non Delid - 81deg, Delid with MX4 - 71deg, With CLU - 65deg!!!

 

[reyreina]

how to be sure if a non-Z series motherboard can adjust voltage and over clock the G3258? of course, other than searching online for successful cases...

anyway, newegg has a deal on G3258 bundle today. the GA one does OC, not so sure about the Biostar. GA board seems to have better cooling and video ports. Biostar board is MATX with 4 ram slots.

G3258 + BIOSTAR Hi-Fi B85S3+ for $83
Combo: 1760450

G3258 + Gigabyte GA-B85-HD3 for $108
Combo: 1760443

 

[MacClipper]

You only adjusted turbo multipiers right? EIST still working?

Downclocking works but downvolting seems only working properly on Z chipsets.

 

[MacClipper]

how to be sure if a non-Z series motherboard can adjust voltage and over clock the G3258? of course, other than searching online for successful cases...

Asus is officially standing by non-Z overclocking on their mobos and imo, has the most polished BIOS for non-Z overclocking so far and by far... can take a look at this other combo too.

Asus Unlocks Overclocking on Non Z-Series Motherboards

Combo.1730174